Sandy tunnel composite grouting reinforcement device

Abstract

The composite grouting reinforcement device for the sandy tunnel comprises a ventilation box fixed on an automobile, and a ventilation device is arranged in the ventilation box. According to the composite grouting reinforcement device for the sandy tunnel, an automobile fixedly provided with the ventilation box is driven into the tunnel, the draught fan acts to generate wind power to enable the main air duct to generate negative pressure, the air draft pipeline extends to the suction opening in the outer side of the ventilation box to start to suck sundries such as sand dust and floccules, and the sundries enter a filter barrel of the rough filtration mechanism through the main air duct; a spiral blade on a filter frame in a filter barrel is driven by wind power to enable the filter frame to rotate, flocculent or strip-shaped sundries passing through the filter barrel are collected by a hook when an auxiliary rod rotates, residual sand and stone dust enters a water filter box through an auxiliary air duct and is fused into water, and clean air washed by water is conveyed upwards to an exhaust mechanism. And the air is further filtered and purified by a collecting grid of the exhaust mechanism and then is exhausted backwards, so that the ventilation operation of purifying the air in the tunnel is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel grouting reinforcement equipment, and in particular relates to a composite grouting reinforcement device for a sandy tunnel. Background Art

[0002] With the development of my country's economy and production, higher standards have been put forward for channel construction technology, requiring straight lines, gentle slopes, and wide roads, etc. Therefore, when channels cross rivers, rivers, and straits, the previous bridge plan is mostly changed to a tunnel plan.

[0003] Quaternary water-rich sand layers are often exposed in the construction of cross-river tunnels, cross-sea tunnels, subway tunnels and other projects. Water-rich sand layers have low strength and poor cementation properties. They are typical unfavorable strata that are difficult to manage and have great hazards. The sand layer structure is very easy to collapse under high-head dynamic water environment, leading to disasters such as water gushing, mud bursting, collapse and subsidence. The occurrence of sand layer structural engineering disasters is characterized by concealment and rapidity. Reliable reinforcement and management of sand layers is the key to ensuring the smooth progress of sand tunnel project construction.

[0004] Grouting can effectively block the seepage channel of groundwater and significantly improve the physical and mechanical properties of sandy surrounding rock. Grouting is an effective method for stability control and water-stopping and anti-seepage of sandy soil tunnels. By injecting cement and chemical materials into the water-rich sand layer, the seepage channel of underground dynamic water can be effectively cut off to prevent accidents such as water gushing and sand bursting. After the cement and chemical materials react, they form a flocculation structure with the sand. During grouting, the slurry can form a splitting and penetration diffusion mode under the action of high pressure, accompanied by various diffusion forms such as compaction and penetration. After the slurry solidifies, it can basically meet the safety of construction operations such as excavation. However, the construction environment requirements for the seepage port of the sandy tunnel during grouting are relatively high. When the seepage port is flushed open by water flow and the water flow is large, it will seriously affect the normal progress of the grouting operation. Therefore, a composite grouting reinforcement device for sandy tunnels is designed to reinforce the seepage port of the sandy tunnel to an ideal grouting state, which is convenient for the normal grouting operation of the sandy tunnel and has become a technical problem to be solved at present. Summary of the invention

[0005] The composite grouting reinforcement device for a sandy tunnel provided by the present invention drives a car with a ventilation box fixed thereon into the tunnel, and turns on the fan of the suction mechanism. The action of the fan generates wind force to cause negative pressure in the main air duct, and the suction duct extends to the suction port outside the ventilation box to start sucking debris such as sand, dust, and flocs. The debris enters the filter barrel of the coarse filter mechanism through the main air duct, and the wind force drives the spiral blades on the filter frame in the filter barrel to rotate the filter frame. When the auxiliary rod rotates, the hook collects the flocs or strip-shaped debris passing through the filter barrel, and the remaining sand and stone dust enters the water filter box through the auxiliary air duct. After the wind force mixed with sand and stone dust enters the water filter box, bubbles are generated. When the bubbles run upward, they are cut and broken into small bubbles by the filter screen in the water filter box, so that the sand and stone dust in the bubbles are fully mixed with water, and the sand and stone dust are merged into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified through the collection grid of the exhaust mechanism and then discharged backward, thereby completing the ventilation and air exchange operation of air purification in the tunnel.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A composite grouting reinforcement device for a sandy tunnel comprises a ventilation box fixed on a vehicle, wherein a ventilation device is arranged in the ventilation box, wherein the ventilation device comprises a suction mechanism, a coarse filter mechanism, a water filter mechanism and an exhaust mechanism; the suction mechanism comprises a fan and a main air duct, wherein an exhaust duct is arranged on the main air duct, and an exhaust port of the exhaust duct is arranged on the outer surface of the ventilation box; the coarse filter mechanism comprises a filter barrel, wherein a filter frame is arranged in the filter barrel, the main air duct is connected to the filter barrel, and an auxiliary air duct is arranged at the bottom of the filter barrel; the water filter mechanism comprises a water filter box, wherein the bottom of the water filter box is a trapezoidal structure which is wide at the top and narrow at the bottom, wherein a filter screen is arranged inside the water filter box, the auxiliary air duct is connected to the bottom of the water filter box, and a one-way valve is arranged on the auxiliary air duct; the exhaust mechanism comprises an exhaust duct, wherein one end of the exhaust duct is connected to the water filter box, and the other end of the exhaust duct extends backward out of the ventilation box.

[0008] At least three exhaust ducts are arranged on the main air duct, each exhaust duct is respectively provided with an auxiliary exhaust structure, the auxiliary exhaust structure comprises a telescopic tube, a wind box and a baffle, the telescopic tube is sleeved on the exhaust duct, the wind box is arranged at the end of the telescopic tube, a plurality of suction channels are arranged between the wind box and the baffle, a suction port is opened on the suction channel, and a driving rod is arranged between the wind box and the main air duct.

[0009] The top of the filter barrel is open, and the filter frame is fixed at the open position of the top of the filter barrel by a mounting block. A handle is provided on the top of the mounting block, and a downwardly arranged rotating shaft is provided at the bottom of the mounting block. At least two mounting rods are provided on the rotating shaft, and the mounting rods are vertically arranged to the rotating shaft. A spiral blade is respectively provided on each mounting rod, and an auxiliary rod is respectively provided at the end of each mounting rod, and the auxiliary rod is vertically arranged to the mounting rod, and the auxiliary rod is provided with a plurality of hooks.

[0010] At least two filters are provided inside the water filter box, the mesh of the upper filter is smaller than that of the lower filter, a drain pipe is provided at the bottom of the water filter box, and a collecting box is provided at the bottom of the drain pipe; a collecting pool is provided at the bottom of the collecting box, and the collecting pool is located below the drain pipe; a horizontally arranged conveyor belt is provided inside the collecting box, a collecting bucket is provided at the lower right side of the conveyor belt, a scraper is provided on the top of the collecting bucket, the scraper is in contact with the conveyor belt, and the conveyor belt is a filter conveyor belt.

[0011] A flow sensor is arranged in the filter barrel.

[0012] An inclined collecting grid is provided in the exhaust pipe, a row of nozzles is provided on the top of the collecting grid, a collecting hopper is provided at the bottom of the collecting grid, a discharge joint is provided at the bottom of the collecting hopper, and a disassembled collecting bottle is provided on the discharge joint.

[0013] The ventilation box is also provided with a blowing mechanism, which includes a first bellows and a second bellows. The first bellows is arranged at the front side of the ventilation box, and a blower is arranged in the first bellows. The second bellows is arranged at the lower front edge of the front of the car, and a high-pressure nozzle is arranged at the bottom of the second bellows and is inclined downward.

[0014] The driving rod is an electric push rod, and a warning light is respectively arranged on the outer side of each baffle.

[0015] A clean water tank is provided inside the ventilation box, and the clean water tank is connected to the water filter box and the nozzle in the exhaust pipe through pipelines.

[0016] A liquid level sensor is arranged in the water filter box.

[0017] Beneficial Effects

[0018] By adopting the above technical solution, the beneficial effects of the present invention are:

[0019] When a large amount of dust, flocs and other debris is poured into the tunnel, the composite grouting reinforcement device for sandy tunnels provided by the present invention drives a car with a ventilation box fixed into the tunnel, turns on the fan of the suction mechanism, and the action of the fan generates wind force to cause negative pressure in the main air duct. The exhaust duct extends to the suction port outside the ventilation box to start sucking dust, flocs and other debris, and the debris enters the filter barrel of the coarse filter mechanism through the main air duct. The wind drives the spiral blades on the filter frame in the filter barrel to rotate the filter frame. When the auxiliary rod rotates, the hook will pass through the filter barrel The flocculent or strip-shaped debris is collected, and the remaining sand and dust enter the water filter box through the auxiliary air duct. The wind mixed with sand and dust enters the water filter box to generate bubbles. When the bubbles move upward, they are cut and broken into small bubbles by the filter screen in the water filter box, so that the sand and dust in the bubbles are fully mixed with water, and the sand and dust are integrated into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified by the collection grid of the exhaust mechanism before being discharged backwards, completing the ventilation and air exchange operation of air purification in the tunnel;

[0020] At least three exhaust ducts are provided on the main air duct, and each exhaust duct is provided with an auxiliary exhaust structure. When there are a lot of debris such as sand, dust and floccules in the tunnel, the auxiliary exhaust structure is opened by the driving rod. At this time, the exhaust duct changes from one suction port to multiple suction ports for suction operation, which can quickly suck the debris in the tunnel into the ventilation box;

[0021] The top of the filter barrel is open, and the filter frame is fixed at the top open position of the filter barrel through the mounting block. When the hook on the auxiliary rod of the filter frame is full of debris, the staff will take the filter frame out of the filter barrel by the handle and put the clean filter frame back into the filter barrel, so that the filter frame can be replaced quickly and conveniently.

[0022] A drainage pipe is provided at the bottom of the water filter box, and a collection box is provided at the bottom of the drainage pipe. When the water in the water filter box is mixed with a lot of sand and dust, it becomes sewage, which is discharged to the collection box through the drainage pipe. When the sewage passes through the rotating filter conveyor belt, the large particles of debris in the sewage are filtered by the filter conveyor belt and transported to the collection bucket. The scraper on the top of the collection bucket can drop the debris that is not easy to fall off the filter conveyor belt into the collection bucket.

[0023] The installation box is also provided with a blowing mechanism, which includes a first bellows and a second bellows. The first bellows is arranged at the front side of the installation box, and a blower is arranged in the first bellows. The second bellows is arranged at the lower front edge of the front of the car, and a high-pressure nozzle is arranged at the bottom of the second bellows, which is inclined downward. When the car is moving, the blowing mechanism can blow up impurities and debris on the ground in the tunnel, which is convenient for the ventilation box to collect and process.

[0024] In summary, the present invention provides a composite grouting reinforcement device for a sandy tunnel. The composite grouting reinforcement device for a sandy tunnel provided by the present invention drives a car with a ventilation box fixed into a tunnel, turns on the fan of the suction mechanism, and the action of the fan generates wind force to cause negative pressure in the main air duct. The exhaust duct extends to the suction port outside the ventilation box to start sucking sand, dust, flocs and other debris. The debris enters the filter barrel of the coarse filter mechanism through the main air duct, and the wind drives the spiral blades on the filter frame in the filter barrel to rotate the filter frame. When the auxiliary rod rotates, the hook will pass through The flocs or strips of debris in the filter barrel are collected, and the remaining sand and dust enter the water filter box through the auxiliary air duct. The wind mixed with sand and dust enters the water filter box to generate bubbles. When the bubbles move upward, they are cut and broken into small bubbles by the filter mesh in the water filter box, so that the sand and dust in the bubbles are fully mixed with water, and the sand and dust are integrated into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified through the collection grid of the exhaust mechanism before being discharged backwards, completing the ventilation and air exchange operation of air purification in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0026] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0027] Figure 3 The structure of the present invention is schematically shown Figure 3 ;

[0028] Figure 4 for Figure 3 The main view;

[0029] Figure 5 It is a structural schematic diagram of the suction mechanism in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the coarse filtering mechanism in the present invention;

[0031] Figure 7 A schematic diagram of the structure of the water filter mechanism in the present invention;

[0032] Figure 8 A schematic diagram of the structure of the exhaust mechanism in the present invention;

[0033] Fig. 9 for Figure 8 A schematic cross-sectional structure diagram of ;

[0034] Fig.10 It is a schematic diagram of the structure of the collection box of the water filter mechanism in the present invention.

[0035] Ventilation box 1, fan 2, main air duct 3, exhaust duct 4, filter barrel 5, auxiliary air duct 6, water filter box 7, filter screen 8, one-way valve 9, exhaust pipe 10, telescopic tube 11, wind box 12, baffle 13, suction channel 14, drive rod 15, mounting block 16, rotating shaft 17, spiral blade 18, auxiliary rod 19, collecting box 20, conveyor belt 21, collecting barrel 22, scraper 23, collecting grid 24, collecting hopper 25, collecting bottle 26, first bellows 27, second bellows 28, warning light 29, high-pressure nozzle 30. DETAILED DESCRIPTION

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0038] like Figure 1-Figure 10 As shown, the composite grouting reinforcement device for sand tunnels includes a ventilation box 1 fixed on a car, a ventilation device is arranged in the ventilation box 1, and the ventilation device includes a suction mechanism, a coarse filter mechanism, a water filter mechanism and an exhaust mechanism; the suction mechanism includes a fan 2 and a main air duct 3, the main air duct 3 is provided with an exhaust pipe 4, and the exhaust port of the exhaust pipe 4 is arranged on the outer surface of the ventilation box 1; the coarse filter mechanism includes a filter barrel 5, a filter frame is arranged in the filter barrel 5, the main air duct 3 is connected to the filter barrel 5, and the filter barrel 5 is provided with an auxiliary air duct 6 at the bottom; the water filter mechanism includes a water filter box 7, the bottom of the water filter box 7 is a trapezoidal structure that is wide at the top and narrow at the bottom, a filter screen 8 is provided inside the water filter box 7, the auxiliary air duct 6 is connected to the bottom of the water filter box 7, and a one-way valve 9 is provided on the auxiliary air duct 6, and the one-way valve 9 can prevent the water in the water filter box 7 from flowing back into the auxiliary air duct 6; the exhaust mechanism includes an exhaust pipe 10, one end of the exhaust pipe 10 is connected to the water filter box 7, and the other end of the exhaust pipe 10 extends backward out of the ventilation box 1.

[0039] At least three exhaust ducts 4 are provided on the main air duct 3, and each exhaust duct 4 is respectively provided with an auxiliary exhaust structure, which includes a telescopic tube 11, a wind box 12 and a baffle 13. The telescopic tube 11 is sleeved on the exhaust duct 4, and the wind box 12 is arranged at the end of the telescopic tube 11. A plurality of suction channels 14 are provided between the wind box 12 and the baffle 13, and a suction port is opened on the suction channel 14. A driving rod 15 is provided between the wind box 12 and the main air duct 3.

[0040] The top of the filter barrel 5 is open, and the filter frame is fixed to the open position of the top of the filter barrel 5 by a mounting block 16. A handle is provided on the top of the mounting block 16, and a downwardly arranged rotating shaft 17 is provided at the bottom of the mounting block 16. At least two mounting rods are provided on the rotating shaft 17, and the mounting rods are vertically arranged with the rotating shaft 17. A spiral blade 18 is respectively provided on each mounting rod, and an auxiliary rod 19 is respectively provided at the end of each mounting rod. The auxiliary rod 19 is vertically arranged with the mounting rod, and the auxiliary rod 19 is provided with a plurality of hooks.

[0041] At least two filters 8 are provided inside the water filter box 7, the mesh of the upper filter 8 is smaller than that of the lower filter 8, a drain pipe is provided at the bottom of the water filter box 7, and a collection box 20 is provided at the bottom of the drain pipe; a collection pool is provided at the bottom of the collection box 20, and the collection pool is located below the drain pipe; a horizontally arranged conveyor belt 21 is provided inside the collection box 20, a collection bucket 22 is provided at the lower right side of the conveyor belt 21, a scraper 23 is provided at the top of the collection bucket 22, and the scraper 23 is in contact with the conveyor belt 21, and the conveyor belt 21 is a filter conveyor belt. Two filter conveyor belts 21 and two collection buckets 22 can be provided in the collection box 20 according to the operation requirements to further increase the filtering and collection effect of sewage.

[0042] A flow sensor is provided in the filter barrel 5. Through the data feedback of the flow sensor, the staff can judge whether the filter frame in the filter barrel 5 is full of debris, which is convenient for the staff to replace the filter frame.

[0043] The exhaust pipe 10 is provided with an inclined collecting grid 24, a row of nozzles are provided on the top of the collecting grid 24, a collecting hopper 25 is provided at the bottom of the collecting grid 24, a discharging joint is provided at the bottom of the collecting hopper 25, and a disassembled collecting bottle 26 is provided on the discharging joint. The air entering the exhaust pipe 10 has been basically purified, and a few impurities that have not been purified are adsorbed by the collecting grid 24 and flushed into the collecting hopper 25 when passing through the collecting grid 24 and the nozzles. Two collecting grids 24 are provided in the exhaust pipe 10, which further increases the purification effect of the exhaust pipe 10 and makes the air discharged from the exhaust pipe 10 clean and moist.

[0044] The ventilation box 1 is also provided with a blower mechanism, which includes a first wind box 27 and a second wind box 28. The first wind box 27 is arranged at the front side of the ventilation box 1, and a blower is arranged in the first wind box 27. The second wind box 28 is arranged at the lower edge of the front side of the vehicle head, and a high-pressure nozzle 30 is arranged at an angle downward at the bottom of the second wind box 28. When the vehicle is running, the blower mechanism can blow up the impurities and debris on the ground in the tunnel, which is convenient for the ventilation box 1 to collect and process them.

[0045] The driving rod 15 is an electric push rod, and a warning light 29 is respectively provided on the outer side of each baffle 13. When the baffle 13 is opened outwards, the warning light 29 flashes to warn surrounding vehicles to slow down.

[0046] A clean water tank is provided inside the ventilation box 1, and the clean water tank is connected to the water filter box 7 and the nozzle in the exhaust pipe 10 through pipelines.

[0047] A liquid level sensor is provided in the water filter box 7, so that the staff can replace and replenish the water in the water filter box 7 in time, and ensure that the water in the water filter box 7 is in the best water filtering state.

[0048] Embodiment 1

[0049] When a lot of dust, floccules and other debris are poured into the tunnel, a car with a ventilation box 1 is driven into the tunnel, and the fan 2 of the suction mechanism is turned on. The fan 2 generates wind force to cause negative pressure in the main air duct 3, and the exhaust duct 4 extends to the suction port outside the ventilation box 1 to start sucking dust, floccules and other debris. The debris enters the filter barrel 5 of the coarse filter mechanism through the main air duct 3. The wind drives the spiral blades 18 on the filter frame in the filter barrel 5 to rotate the filter frame. When the auxiliary rod 19 rotates, the hook will pass through the floccules or strips of debris in the filter barrel 5. The remaining sand and stone dust enters the water filter box 7 through the auxiliary air duct 6. The wind mixed with sand and stone dust enters the water filter box 7 to generate bubbles. When the bubbles move upward, they are cut and broken into small bubbles by the filter screen 8 in the water filter box 7, so that the sand and stone dust in the bubbles are fully mixed with water, and the sand and stone dust are integrated into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified by the collection grid 24 of the exhaust mechanism before being discharged backwards, completing the ventilation and air exchange operation of air purification in the tunnel.

[0050] Embodiment 2

[0051] When there are a lot of debris such as dust and flocs in the tunnel, the auxiliary exhaust structure is opened by driving the rod 15, and fan-shaped suction channels 14 extend from both sides and the top of the ventilation box 1. At this time, the exhaust duct 4 is changed from one suction port to multiple suction ports for suction operations, which can quickly suck the debris in the tunnel into the ventilation box 1.

[0052] Embodiment 3

[0053] When there is a lot of dust, flocs and other debris on the ground in the tunnel, the blowing mechanism on the ventilation box 1 is turned on, and the blower of the first bellows 27 is activated, so that the high-pressure nozzle arranged downwardly at the bottom of the second bellows 28 sprays out high-pressure airflow. When the car is running, the blowing mechanism can blow up the impurities and debris on the ground in the tunnel, which is convenient for the ventilation box 1 to collect and process.

[0054] Embodiment 4

[0055] The ventilation box 1 is installed on the chassis of the train, and when the train passes through the railway tunnel, the railway tunnel is subjected to air purification and ventilation operations.

[0056] Embodiment 5

[0057] The ventilation box 1 is installed on the chassis of the subway train. When the subway train is running, the blowing mechanism and the auxiliary exhaust structure of the ventilation box 1 are turned on to perform air purification and ventilation operations on the closed subway tunnel.

[0058] Embodiment 6

[0059] When sand, gravel, smoke and dust are everywhere on an open road or a construction site, the vehicle-mounted ventilation device provided by the present invention can also be used to perform air purification operations.

[0060] By adopting the above technical solution, the beneficial effects of the present invention are:

[0061] When a large amount of dust, flocs and other debris is poured into the tunnel, the composite grouting reinforcement device for sandy tunnels provided by the present invention drives a car with a ventilation box 1 fixed into the tunnel, turns on the fan 2 of the suction mechanism, and the fan 2 generates wind force to cause negative pressure in the main air duct 3. The exhaust duct 4 extends to the suction port outside the ventilation box 1 to start sucking dust, flocs and other debris, and the debris enters the filter barrel 5 of the coarse filter mechanism through the main air duct 3. The wind drives the spiral blades 18 on the filter frame in the filter barrel 5 to rotate the filter frame. When the auxiliary rod 19 rotates, the hook will pass through The flocculent or strip-shaped debris in the filter barrel 5 is collected, and the remaining sand and dust enter the water filter box 7 through the auxiliary air duct 6. The wind mixed with sand and dust enters the water filter box 7 to generate bubbles. When the bubbles move upward, they are cut and broken into small bubbles by the filter screen 8 in the water filter box 7, so that the sand and dust in the bubbles are fully mixed with water, and the sand and dust are integrated into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified by the collection grid 24 of the exhaust mechanism and then discharged backward, completing the ventilation and air exchange operation of air purification in the tunnel;

[0062] At least three exhaust ducts 4 are provided on the main air duct 3, and each exhaust duct 4 is provided with an auxiliary exhaust structure. When there are a lot of debris such as sand, dust and floccules in the tunnel, the auxiliary exhaust structure is opened by the driving rod 15. At this time, the exhaust duct 4 changes from one suction port to multiple suction ports for suction operation, which can quickly suck the debris in the tunnel into the ventilation box 1;

[0063] The top of the filter barrel 5 is open, and the filter frame is fixed to the open position of the top of the filter barrel 5 by the mounting block 16. When the hook on the auxiliary rod 19 of the filter frame is full of debris, the staff can take the filter frame out of the filter barrel 5 by the handle, and put the clean filter frame back into the filter barrel 5, so that the filter frame can be replaced quickly and conveniently.

[0064] A drainage pipe is provided at the bottom of the water filter box 7, and a collection box 20 is provided at the bottom of the drainage pipe. When the water in the water filter box 7 is mixed with a lot of sand and dust and becomes sewage, the sewage is discharged to the collection box 20 through the drainage pipe. When the sewage passes through the rotating filter conveyor belt 21, large particles of debris in the sewage are filtered by the filter conveyor belt 21 and conveyed to the collection bucket 22. The scraper 23 on the top of the collection bucket 22 can hang the debris that is not easy to fall off the filter conveyor belt 21 into the collection bucket 22;

[0065] The installation box is also provided with a blowing mechanism, which includes a first bellows 27 and a second bellows 28. The first bellows 27 is arranged at the front side of the installation box, and a blower is arranged in the first bellows 27. The second bellows 28 is arranged at the lower front edge of the front of the car, and a high-pressure nozzle is arranged at the bottom of the second bellows 28 inclined downward. When the car is running, the blowing mechanism can blow up impurities and debris on the ground in the tunnel, which is convenient for the ventilation box 1 to collect and process.

[0066] In summary, the present invention provides a composite grouting reinforcement device for a sandy tunnel. The composite grouting reinforcement device for a sandy tunnel provided by the present invention drives a car with a ventilation box 1 fixed into a tunnel, turns on the fan 2 of the suction mechanism, and the fan 2 generates wind force to cause negative pressure in the main air duct 3. The exhaust duct 4 extends to the suction port outside the ventilation box 1 to start sucking sand, dust, flocs and other debris. The debris enters the filter barrel 5 of the coarse filter mechanism through the main air duct 3. The wind drives the spiral blades 18 on the filter frame in the filter barrel 5 to rotate the filter frame. When the auxiliary rod 19 rotates, the hook will The flocculent or strip-shaped debris is collected by the filter barrel 5, and the remaining sand and dust enter the water filter box 7 through the auxiliary air duct 6. The wind mixed with sand and dust enters the water filter box 7 to generate bubbles. When the bubbles move upward, they are cut and broken into small bubbles by the filter mesh 8 in the water filter box 7, so that the sand and dust in the bubbles are fully mixed with water, and the sand and dust are integrated into the water. The clean air washed by water is transported upward to the exhaust mechanism, and is further filtered and purified by the collection grid 24 of the exhaust mechanism and then discharged backward, completing the ventilation and air exchange operation of air purification in the tunnel.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite grouting reinforcement device for a sandy tunnel, comprising a traveling mechanism, on which a mounting arm reinforcement plate is provided, characterized in that: The bottom of the mounting arm is arranged on a rotating seat, and the rotating seat is rotatably arranged on the mounting seat. A supporting telescopic rod is arranged between the mounting arm and the rotating seat. A mounting groove is opened on the upper part of the mounting arm, and a driving gear is arranged at the lower side of the mounting groove. The driving gear is driven by a motor arranged on the side of the mounting arm. An auxiliary arm is hingedly arranged on the top of the mounting groove, and a semicircular gear is arranged at the bottom of the auxiliary arm, and the semicircular gear is meshed with the driving gear; a mounting panel is arranged on the top of the auxiliary arm, and a telescopic arm is arranged on the mounting panel. The telescopic arm and the auxiliary arm are arranged coaxially, and a mounting platform is arranged on the top of the telescopic arm, and a magnetic suction block is arranged on the mounting platform; the reinforcement plate is a metal plate with a rectangular structure, the reinforcement plate is bent, and a connecting frame is arranged on the inner arc surface of the reinforcement plate, and the connecting frame is adapted to the magnetic suction block.

2. The composite grouting reinforcement device for sandy tunnel according to claim 1 is characterized in that: The walking mechanism is also provided with a connecting frame, which is composed of a belt conveyor and a cavity. A number of cavities evenly arranged at positions are fixed on the conveyor belt of the belt conveyor, and the reinforcement plates are placed in the grooves of the cavities. A storage rack is also provided on the side of the connecting frame, and the storage rack stores the reinforcement plates.

3. The composite grouting reinforcement device for sandy tunnel according to claim 2 is characterized in that: A positioning laser is provided in the middle of the top surface of the magnetic block, and a positioning hole is provided on the reinforcement plate, and the positions of the positioning laser and the positioning hole correspond to each other.

4. The composite grouting reinforcement device for sandy tunnel according to claim 3 is characterized in that: An auxiliary telescopic rod is respectively arranged on both sides of the magnetic block of the mounting platform; two mounting holes are arranged on the reinforcement plate, a rivet is respectively arranged in the two mounting holes, and the two auxiliary telescopic rods are arranged corresponding to the two mounting holes.

5. The composite grouting reinforcement device for sandy tunnel according to claim 4 is characterized in that: A hydraulic motor is respectively provided at the end of the two auxiliary telescopic rods, and a screwdriver head is respectively provided at the top of the two hydraulic motors; a fastening screw is respectively provided in the two mounting holes, and the two screwdriver heads are correspondingly arranged with the two fastening screws.

6. The composite grouting reinforcement device for sandy tunnel according to claim 5 is characterized in that: The mounting force arm comprises an upper arm and a lower arm, the upper arm and the lower arm are hinged, the lower arm is fixed on the rotating seat, the upper part of the supporting telescopic rod is hinged on the upper arm, and the lower part of the supporting telescopic rod is hinged on the rotating seat.

7. The composite grouting reinforcement device for sandy tunnel according to claim 6 is characterized in that: A storage box is provided at the bottom of the storage rack, and rivets and fastening screws are placed in the storage box.

8. The composite grouting reinforcement device for sandy tunnels according to claim 7 is characterized in that: The traveling mechanism is a crawler-type traveling mechanism, and a hydraulic support column is arranged on the crawler-type traveling mechanism.

9. The composite grouting reinforcement device for sandy tunnels according to claim 8 is characterized in that: A compass is arranged on the rotating seat.

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